Concrete-spreader.



i. E. BRIGGS.

GRET

JAMES E. BRIGGS, 0F WATERLOO, IOWA.

CONCRETE-SPREADER.

Specification of Letters Patent.

Application filed November 11, 1911.

Patented Mar. 4, 1913.

Serial No. 659,754.

claimed, and which are illustrated in the accompanying drawings, inwhich:

Figure l is a left-hand side elevation of my improved concrete spreader.Fig. 2 is an upper plan view of the same. Fig. 3 is a detail elevationof one of the upwardlybent axle-sections.

Similar characters of reference designate corresponding parts throughoutthe several views.

My improved spreader is of the push-cart type, having a hollow metallicbody a supported on a pair of carrying-wheels wf Each wheel to isrotatably mounted on the cylindrical horizontal outwardly-directedportion of an axle-section h, each section h being bent upwardly, thenflattened to produce fiat fork-members g, and then secured to the sideof the box a by means of a staple z' and rivets y. This manner ofdividing and mounting the parts of the axle conduces to stability andstrength, without any interference with the functions of the spreader.

The box a of the spreader has a rearwardly-inclined bottom-plate 2,whose rear edge a is extended a short distance beyond the plane of therear end of the box for a purpose to be indicated later. The forwardpart of the box a is supported on legs t having braces .9, said legshaving a plurality of pin-holes r to adjustably receive a pin 79 alsoseated in an orifice in the lower rear end of a brace 0, the upperforward end of said The lower part of the rear end of said box a isopen, but said opening is adapted to be closed by means of a swing dropdoor I) hinged to the rear plate by means of the hinges The height ofthe door is such, that its lower horizontal edge may scrape over theprojecting part a of the box bottomplate a, and thus, in cooperationwith the forwardly-flanged .side edges of the door, makes a tight fitover said opening. The said door is manipulated for opening and closingby the following mechanism: The character Z designates a shifting-levercomposed of two parallel arms connected by a cross-piece, thecross-piecebeing located just above the handle-bars n and lying adistance forward of the front end of said'box a. This cross-piece isthus located conveniently to be thrust upwardly by any means or anupward blow received by it from a knee of the user. said lever arepivoted to brackets w on said box at pintles o, and at a short distanceanterior to said pintles at a bent part of said arms the upper ends ofthe connecting-rods e are pivoted to them at 70. The lower ends of theconnecting-rods e are pivoted at d to the lower side parts of the doorI). The arrangement of the lever-arms and connectingrods is such thatwhen the arms are moved forward and downwardly to the position shown inthe full lines in Fig. 1, the pivot is on each side passes the medialline from the pivot o to the pivot 01, and secures the door in itsclosed position. However, when the arms Z are raised to move the rods 6to the The rear ends of the arms of rear of the pivots o, the combinedweight been discharged, it is only necessary to shift the arms l back totheir former position, the rearward positions of the moving parts abovedescribed being indicated by the dotted lines in said Fig. 1.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is:

In combination, a hollow box mounted pivotally on carrying-wheels,having a hinged outwardly-swinging door, having also forwardly directedhandles, a bailshaped lever having its members pivoted 0n Signed atWVaterloo, Iowa, this 26th day opposite sides of said box and itstransverse of October, 1911.

part located above said. handles at a location intermediately betweentheir ends and JAMES BRIGGS 5 the box, and rods pivotally-connected be-Witnesses:

tween said door on each side and the lnem- HAZEL F. CRUMRINE,

bers of said bail-shaped lever. IRA W. BLOUGH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

